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    4 research outputs found

    An interconnect model for storage array on Chip

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    Crossref

    JUNO Sensitivity on Proton Decay p→νˉK+p\to \bar\nu K^+ Searches

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    The Jiangmen Underground Neutrino Observatory (JUNO) is a large liquid scintillator detector designed to explore many topics in fundamental physics. In this paper, the potential on searching for proton decay in p→νˉK+p\to \bar\nu K^+ mode with JUNO is investigated.The kaon and its decay particles feature a clear three-fold coincidence signature that results in a high efficiency for identification. Moreover, the excellent energy resolution of JUNO permits to suppress the sizable background caused by other delayed signals. Based on these advantages, the detection efficiency for the proton decay via p→νˉK+p\to \bar\nu K^+ is 36.9% with a background level of 0.2 events after 10 years of data taking. The estimated sensitivity based on 200 kton-years exposure is 9.6×10339.6 \times 10^{33} years, competitive with the current best limits on the proton lifetime in this channel.Comment: 14 pages, 12 figures, an author adde
    Pontificia Universidad Católica de Chile: Repositorio UC
    Archivio istituzionale della ricerca - Politecnico di Milano
    HAL AMU
    Portail HAL Nantes Université
    HAL Mines Nantes
    Archivio istituzionale della ricerca - Università di Ferrara
    Archivio istituzionale della ricerca - Università di Padova
    OuluREPO University of Oulu repository
    arXiv.org e-Print Archive
    Archives ouvertes de Paris-Saclay
    HAL-IN2P3
    AIR Universita degli studi di Milano
    Archives ouvertes Hal IMT Atlantique
    Archivio della Ricerca - Università di Roma 3
    HAL
    Oskar Bordeaux

    JUNO Sensitivity to Invisible Decay Modes of Neutrons

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    International audienceWe explore the bound neutrons decay into invisible particles (e.g., n→3νn\rightarrow 3 \nu or nn→2νnn \rightarrow 2 \nu) in the JUNO liquid scintillator detector. The invisible decay includes two decay modes: n→inv n \rightarrow { inv} and nn→inv nn \rightarrow { inv} . The invisible decays of ss-shell neutrons in 12C^{12}{\rm C} will leave a highly excited residual nucleus. Subsequently, some de-excitation modes of the excited residual nuclei can produce a time- and space-correlated triple coincidence signal in the JUNO detector. Based on a full Monte Carlo simulation informed with the latest available data, we estimate all backgrounds, including inverse beta decay events of the reactor antineutrino νˉe\bar{\nu}_e, natural radioactivity, cosmogenic isotopes and neutral current interactions of atmospheric neutrinos. Pulse shape discrimination and multivariate analysis techniques are employed to further suppress backgrounds. With two years of exposure, JUNO is expected to give an order of magnitude improvement compared to the current best limits. After 10 years of data taking, the JUNO expected sensitivities at a 90% confidence level are τ/B(n→inv)>5.0×1031 yr\tau/B( n \rightarrow { inv} ) > 5.0 \times 10^{31} \, {\rm yr} and τ/B(nn→inv)>1.4×1032 yr\tau/B( nn \rightarrow { inv} ) > 1.4 \times 10^{32} \, {\rm yr}
    Pontificia Universidad Católica de Chile: Repositorio UC
    HAL-IN2P3
    AIR Universita degli studi di Milano
    EDP Sciences OAI-PMH repository (1.2.0)
    HAL AMU
    Directory of Open Access Journals
    Portail HAL Nantes Université
    Archives ouvertes Hal IMT Atlantique
    Publikationsserver der RWTH Aachen University
    GSI Repository
    HAL
    Archivio istituzionale della ricerca - Università di Padova

    Prediction of Energy Resolution in the JUNO Experiment

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    International audienceThis paper presents the energy resolution study in the JUNO experiment, incorporating the latest knowledge acquired during the detector construction phase. The determination of neutrino mass ordering in JUNO requires an exceptional energy resolution better than 3% at 1 MeV. To achieve this ambitious goal, significant efforts have been undertaken in the design and production of the key components of the JUNO detector. Various factors affecting the detection of inverse beta decay signals have an impact on the energy resolution, extending beyond the statistical fluctuations of the detected number of photons, such as the properties of liquid scintillator, performance of photomultiplier tubes, and the energy reconstruction algorithm. To account for these effects, a full JUNO simulation and reconstruction approach is employed. This enables the modeling of all relevant effects and the evaluation of associated inputs to accurately estimate the energy resolution. The study reveals an energy resolution of 2.95% at 1 MeV. Furthermore, the study assesses the contribution of major effects to the overall energy resolution budget. This analysis serves as a reference for interpreting future measurements of energy resolution during JUNO data taking. Moreover, it provides a guideline in comprehending the energy resolution characteristics of liquid scintillator-based detectors
    arXiv.org e-Print Archive
    HAL-IN2P3
    AIR Universita degli studi di Milano
    HAL AMU
    Portail HAL Nantes Université
    Archives ouvertes Hal IMT Atlantique
    Juelich Shared Electronic Resources
    GSI Repository
    HAL
    Archivio istituzionale della ricerca - Università di Padova
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